Accumulator for calculating-machines.



IE. L. KELLER. AGGUMULATOR FOR CALCUL/mme MACHINES.

APPLICATION FILED OOTJG, 1911. 1,095,674, Patented May 5, 1914.

6 SHEETS-SHEET l.

E. L. KELLER.

AGGUMULATOR FOR GALGULATING MAGHINES.

APPLICATION FILED OGT.16, 1911.

MH a |l Lbs E. L. RELLER. AGGUMULATOR POR CALGULATING MACHINES.

APPLICATION FILED 00116, 1911.

1,095,674. Patented May 5, 1914.

e SHEETS-SHEET a.

264 Lux l 'y f o Q um nfmlmmnmn v L 1 g: iI

E. L. RELLER.

AGGUMULATOR FOR GALGULATING MACHINES.

APPLIUATION FILED come, 1911. 1,095,674, Patented May 5, 1914.

,e SHEETS-SHEET 4.

COLUMBIA PLANOGRAPH C0 wmNTDN D c E. L. KELLER..

AUGUMULATOR POR GALCULATING MACHINES.

APPLICATION FILED 0O'l.16, 1911. 1,095,674` Patented May 5, 1914.

6 SHEETS-SHEET 5.

E. L. RELLER.

AGCUMULATOR FOR GALGULATING MACHINES.

APPLICATION FILED 0GT.16, 1911.

Patented May 5, 1914.

6 SHEETS-SHEET 6.

CoLullBxA PLANOGRAPH cmwAsmNuoN. D. Ck.

UNITED STATES PATENT OFFICE.

EDWIN L. RELLER, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE DUCO ADDING MACHINE COMPANY, OF ST. LOUIS, MISSOUR-I, A CORPORATION OF MISSOURI.

ACCUMULATOR FOR CALCULATING-MACHINES.

To all whom it may concern Be it known that I, EDWIN L. RELLER, a citizen of the United States, residing at the city of St. Louis, State of Missouri, have invented certain new and useful Improvements in Accumulators for Calculating-Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

The present invention relates to improvements in calculating machines and is more especially applicable to calculating machines of the type embodied in the pending application of Edwin A. Reed, Edwin L. Reller, IVilliam L. Swift, and Albert J. Meier, filed April 3, 1911, Serial No. 618,655, the present improvements being directed particularly to the accumulator for machines of the type therein disclosed.

An object of' this invention is to provide an accumulator whereby the printing wheels thereof are automatically set to print ciphers in all columns to the right of the column containing the selected numeral.

Further objects of this invention are to provide an accumulatorl embodying simple and elficient mechanism for clearing` the same after each total printing operation, improved carry-o-ver mechanism for the printing wheels, an automatic signal or alarm operative to indicate when a carryover1 has occurred when the accumulator has been set to simultaneously add two or more columns, and to provide a generally improved accumulator, all as will be hereinafter described, the features of novelty being set forth particularly in the claims.

In the accompanying drawings, wherein similar parts are designated by the same reference characters, Figure 1 is a top plan view of an accumulator embodying the present invention; Fig. 2 represents an enlarged detail sectional view taken axially through the set of printing wheels on the line 2 2 of Fig. 1 and showing the clearing devices associated therewith; Fig. 3 is an exterior' side elevation of one side of the accumulator; Fig. 4 represents a section on the line 4 4 of Fig. 1 and looking in the direction of the arrows; Fig. 5 represents a vertical section taken centrally through the accumulator, indicating the manner in which the accumula- Speccaton of Letters Patent.

Application filed October 16, 1911.

Patented May 5, 1914.

serial No. 654,982.

tor actuating bars coperate therewith; Fig. 6 represents a section o'n the line G-G of Fig. 5 and looking in the direction of the arrows; Fig. 7 is a diagrammatic view showing the normal. relation between a printing wheel of the accumulator and its respective actuating bar; Fig. S is a sectional view showing a portion of the clearing mechanisin; Figs. 9 and 10 are detail views showing the operative connections between the accumulator and the main actuating bar of the machine; Fig. 11 represents a section on the line 11-11, Fig. 1 and looking in the direction of the arrows; Fig. 12 is an elevation on an enlarged scale of the resetting means for the carry-over pawls, as viewed from the right in Fig. 5; Fig. 13 is a detail perspective view of the comb for guiding the actuating bars in the accumulator, and Fig. 14 is a similar view of a guiding comb used in the accumulator.

The present embodiment of this invention is, as previously stated, applicable particularly to calculating machines of the type disclosed in the above-identified application, and in the drawings illustrating such embodiment, the main operating elements are represented as constituted by a series of bars 5 which are themselves actuated from the item-printing mechanism, (not shown), so as to transmit their movements to the totalprinting wheels 54. There is one of these bars 5 for each printing wheel 54, and at. the left-hand side of each bar is mounted a shiftable plate 13, the movement of the said plates being largely concerned, however, with the item-printing mechanism, which forms no part of the present invention. Accordingly, the operation of the plates with respect to that mechanism requires no description, beyond the fact that the plates are guided relatively to their respective bars by means of pins 2G which are located at the forward ends of said plates and work freely in longitudinal slots 27 in said bars. The upper, forward edge of each bar 5 is formed with a rack 2S, to coperate with the corresponding printing wheel 54, as subsequently described, and the lower forward edge of each plate is provided with a forwardly-directed hook 291 the latter being utilized to engage and elevate a cross-bar 32 when the plate is moved forwardly. This cross-bar connects a pair of arms 31 which are borne by a suitably-mounted transverse shaft and are formed at their free front ends withupwardly-directed hooks 30 for a purpose to be hereinafter described, the hoo is being normally held in lowered position by a spring or springs 34.

The forward ends of the rack bars 5 and the coperative plates 13 normally rest upon a supporting cross member 35 Figs. 5 and 13 which is arranged at the entrance to the accumulator and has a comb 36 through which the rack bars and plates operate, whereby such parts are maintained in proper spaced relation. A jack 37 is located immediately adjacent to the support 35, the jack embodying a pair of end members 38, which are connected by and rigidly mounted on a cross bar 39. Vertical movement, and a limited extent of forward and backward movementare permitted the upper portion of the jack by the links 40, which are pivotally connected to the main side plates 4l of the accumulator frame or casing at the points 4Q, the opposite ends of these links being slotted and connected to the jack by the pins 43. The cross bar 39 is secured to a pair of arms 44, Fig. 3, each of these a'ms being pivotally connected at 45 to the main side plates. The end members of the jack have extensions 46 adapted to bear upon the laterally turned upper ends 47 of a pair of supporting detents 4S, these detents being pivoted at 49 to the main side plates 4l and beingyieldably held in position to retain the jack elevated by springs 50, one end of each of these springs being attached to an eccentrically arranged eye 51 on the respective detent while the opposite end of the spring is attached to the jack, whereby the jack will be pulled down after being released by the detents. The detents are disengaged from the jack when the upper portion of the latter is rocked toward the right in Fig. 5, the disengagement being` effected by the prolongation 52, which bears against and rocks the respective detent. rl`he upwardly directed hooks 33, however, when elevated, engage the upper part of the jack and thereby lock the latter in elevated position.

The toothed actuating wheel 53 for each printing wheel 54 is located directly above, but in normally disengaged relation to the rack teeth 28 of the respective rack bar. The printing whe'els and their' actuating wheels correspond in number to the rack bars, these wheels being` mounted to revolve on a common shaft 55, and the periphery of each printing wheel carries a circular row of type faces 5G bearing consecutively arranged numerals, and, also, a type face 57 bearing a Zero character. Cams 53 are, also, interposed between the printing wheels, each cam having a projection 59 adapted to coperate with a projection GO formed on the forward end of a corresponding carry-over pawl Gl, the latter being fulcrumed on ay cross bar 62, which extends through a cam slot G3 in the pawl. The several carry-over pawls for the different printing wheels are maintained in proper spaced relation by a transverse comb G4, and each pawl is returned to and held in normal position by a tension spring G5. A pawl 53a is rotatably mounted on cross rod 53D and is held in engagement with the toothed wheel 53 by the spring 65, so as to prevent same from spinning. The nose of pawl 53 normally occupies a position between two teeth of the wheel 53, in order to allow same to be rotated rearwardly to set the zero type face of its printing wheel 54 in printing position in the manner hereinafter described. The shaft 55 bearing the printing wheels is formed with a longitudinal slot, and a clearing comb 66 Fig. 2 operates radially of the axis of the shaft and within this slot, the projections or teeth of the comb being adapted to coperate with the projections G7 on the edges of the cams 5S for the purpose of restoring all the printing wheels to initial position after each total has been printed. The comb is controlled by a pair of arms GS which are pivoted o-n the main side plates and are operatively connected by the links G9 to a pair of crank arms 70, the latter being attached to the shaft 7l. Members 7la ixed to shaft 7l prevent the detents 43 from being moved out of supporting engagement with extensions 4G of the end members 33 of jack 37, when said shaft is rotated by the depression of the clearing key (not shown), with which same is operatively connected.

One end of the printing wheel shaft 55 has a pinion 72 Fig. 4 fixed thereon, the pinion in the present instance having a stoptooth 73, and this pinion coperates with a toothed sector 74, having a stop tooth 75 adapted to coperate with that of the pinion after the latter has completed substantially nine-tenths of a revolution. The sector 74 is fixed to a shaft 7G, and it, also, has an extension below such shaft, which is pivotally connected to a link 77, the latter having a hook-shaped and downwardly turned end 78 arranged to coperate with a pin 79 borne by a lever SO. The latter is mounted to rock on the transverse shaft 45 and is operatively connected to a resetting frame 3l, Fig. 5, a tension spring S2 serving to return and retain such parts in normal position. The upper edge of the lever 30 is formed with a cam surface 33 Fig. 4 to cooperate with the arm S4 of a bell-crank lever which is mounted on a shaft S5 and has an arm S6 which bears a cross bar 37, a similar arm 88 Fig. 3 being provided at the op- Cir posite side and connecting the shaft 85 and the cross bar 87.

The shaft 76 for the clearing mechanism is operated by a crank 8821, Fig. S, fixed thereto, said crank being pivotally connected to one end of a hook 89 that is formed with an upwardly opening recess 90 adapted to receive a pin 91 carried by a reciprocatory bar 25, which is operated from the handle (not shown) of the machine. Hook 89 is elevated to engage the pin 91 in said recess by a vertically movable link 92, which has a horizontal slot 93 operatively associated with a pin 94 fixed to the hook 89, the link 92 being elevated to set the clearing mechanism into operation by an arm 95 fixed to the shaft 71, the latter being controlled or operated by the clearing key.

The reciprocatory bar 25 is, also, operatively connected by a pin 9G thereon, to a crank plate 97, the bar being guided for reetilinear movement by the pin 9S, Fig. 9, which coperates with a longitudinal slot 99 in the bar, and the pin 96 operates in a radial slot 100 in the crank plate 97, the latter being mounted loosely on a shaft 101 and being turnable about the latter as a center. The upper edge of the crank plate 97 has a concentric portion 102 Fig. S and, also, a notch 103, the latter being adapted to receive a laterally turned projection 104 formed on a second plate 105. The plate 105 has a central slot 106 which accommodates the shaft 101 and permits the plate 105 to shift transversely thereof, the plate 105 also bearing a pin 107 which operates in a radial slot 108 formed in a plate 109, the latter plate being fixed to turn with the shaft 101. The plate 105 is turnable with the plate 109 and is shiftable to control the operative relation between the latter and the crank plate 101, the projection 104 on the latter being normally held in the notch 103 by a tension spring 110.

The shaft 101 also has a cam 111 Fig. 4 fixed thereon, this cam having the successively arranged stepped surfaces 112, 113 and 114. The cam also carries a pawl 115 which is pivoted thereon by the pin 116 and has a tension spring 117 attached thereto which operates to normally hold the pawl in a predetermined position. The pawl also has a nose 118, and a shoulder 119 which cooperates with a pin 120 on the cam for the purpose of preventing movement of the pawl beyond a predetermined point in one direction. One of the arms 44 of the jack is part of a bell crank, the other arm 121 of which has a nose 122 arranged to cooperate with the cam 111. The arm 36 also has an inclined projection 123 arranged in coperative relation to the nose 118 of the pawl 115, this arm being normally held in inactive position by the tension spring 124. The shaft 101 also has a gear sector 125 Fig. 11

fixed thereon, a portion of the periphery of this sector bearing the teeth 126 while the remainder of its periphery is smooth. The teeth o-f this sector coperatie with a mutilated pinion 127 mounted on a stud 128, a portion of the periphery of this pinion being interrupted to form a stop shoulder 129 which is adapted to coperate with the smooth or interrupted portion of the co operating sector.

A second pinion 130 and also a cam 131 are mounted to turn with the pinion 127, the pinion 130 coperating with an idler 132 which in turn coperates with a pinion 133, the latter being mounted loosely on a shaft 134 and being turnable with an arm 135 on said shaft. Such arm carries a pawl 136 which cooperates with a one tooth ratchet wheel 137 fixed to the shaft 134, the pawl being pressed into engagement with its cooperating ratchet wheel by the spring 138. Displacement of the pawl relatively to the ratchet wheel is prevented by tl e laterally turned projection 139 on the arm 135 which is located at the outer side of the pawl. A locking disk 140 is also fixed to turn with the shaft 134, and serves to insure one complete revolution of such shaft at each actuation, the periphery of the disk having a pair of opposed shoulders 141 and 142, the former adapted to abut against a dog 143 to prevent retrograde motion of the ratchet wheel 137 and the shaft 134, and the shoulder 142 being controllable by the dog 144. The dogs 143 and 144 are pivotally mounted on a common shaft or pin 145 and have extended arms which are connected by a tension spring 146 which tends to move and hold the dogs in engagement with the disk 140, the dog 144 also having an arm 147 which bears upon the @am 131 in such a way that when the parts are in initial position, the cam will hold the dog 144 in inactive position and will permit forward rotation of the shaft 134, and after this shaft has been partially rotated, the cam will permit the dog 144 to move into engage-ment with the periphery of the disk 140 and when such disk and consequently the shaft 134, have completed one full revolution, the dog 144 will engage the shoulder 142 of the disk and thereby prevent further rotation of the disk in a forward direction. The dog 143 also coperates, at this time, with the shoulder 141 to prevent retrograde motion of the shaft. Vhile the shaft 134 is thus locked from rotation in either direction the sector 125 returns to initial position, the pawl 136 moving about the periphery of the ratchet wheel 137 and rengaging behind the tooth thereof preparatory to the next succeeding operation. A multiple cam is fixed to the shaft 134, one of the cam elements 145a Fig. 5 thereof being provided for each of the printing wheels and associated parts, excepting the printing wheel at the extreme right, and these elements are spaced at equal angles about the shaft and progressively from right to left. fr set of levers 116a are mounted to operate independently on a cross shaft 117% one of these levers being provided for each cam element, and each lever bears a roller or projection 118 to coperate with its respective cam element, the upper end 119 of each of these levers being utilized for a purpose to be hereinafter described. A disk 150 Fig. 4- is, also, fixed on the shaft 131, it having a wedge-shaped notch to receive a correspond ingly shaped projection on one arm of a bell crank 151, the latter being pivoted at 152 and having a tension spring 153 attached to its other arm, the spring acting to force the projection on the bell crank into the wedge-shaped notch in the disk and thereby automatically position the shaft 131 in initial position. The accumulator, also, embodies a set of members 151 Fig. 5, which are operative in a manner to be hereinafter described, to automatically set the printing wheels of the accumulator in cipher-printing position, there being one of these members for each printing wheel. One end of each of these members has a longitudinal slot 155 to receive the cross member 156 while the opposite end thereof is formed with an upwardly directed projection 157 which is adapted to enter a wedge-shaped notch 158 formed in the periphery of the respective printing wheel. Each of the members is provided at an intermediate point with a locking shoulder 159 and, also, with an angular slot 160, the latter receiving a pin 161 borne by the arm 162 of a bell crank, such a 1m having a depending projection 163, which cooperates with a comb 161, whereby such parts are maintained in proper spaced relation.

A tension spring 165 normally acts to pull the member 151 to the right in Fig. 5, and the other arm 166 of the bell crank, which is pivoted on the cross rod 156 is engaged by a tension spring 167, which normally tends to lift the arm 162. Each member 151 is formed with a shoulder 168, which is adapted to be engaged by the upper transverse member of the cradle 81, whereby, when the cradle is rocked toward the left in Fig. 5, all of the released members will be restored to normal or initial position. A latch 169 is provided for each member 151, and these latches are pivotally mounted at their forward ends on the cross shaft and are formed with shoulders 171 arranged to cooperate with the shoulders 159 of the respective members, when the latches are lowered, thereby preventing forward movement of such members under the action of their springs 165. The forward end of each latch is provided with a laterally turned projection 172 which is adapted to bear upon the top of each plate 13, the latter when lowered and rest-ing upon the support 35 per mitting the latch 169 to remain in locked engagement with its respective member 151. N hen such plate is elevated in a manner to be hereinafter described, the latch will be elevated and in consequence disengaged from its respective member 151, thereby permitting the latter to move forwardly under the infiuence of its spring 165, the project-ion 157 on such member then acting to turn the respective printing wheel sutliciently to bring the zero type face 57 thereon, into printing position. Continued movement of the member 15A/1 causes its projection to disengage from the printing whe-el. The latches 169 are held in locking position by springs 1169 and these springs also act to hold the levers 116a'in coperative relation with the respective cam elements 115th Each carry-over pawl 61 is provided toward its rear end with a horizontal projection 170 and also with a downwardly-directed projection 173, the latter, when the corresponding end of the pawl is lowered, being in the path of the end 119 on its respective lever 11621. A set of locking dogs 171, one for each carry-over pawl, is mounted to reciprocate longitudinally in guides 175 in the upper portion of the accumulator frame, each of these dogs having a depending projection formed with a notch 176, which, when the adjacent end of the corresponding carry-over pawl is lowered, receives the horizontal projection 170 thereon, and thereby holds such end of the pawl in lowered position. A projection 61al on the ripper edge of pawl 61 normally engages the forward guide 175 and thereby prevents said pawl from being moved to rotate its type wheel 51, until the rear end of same is lowered sufficiently to allow the projection 170 to enter notch 176. A tension spring 177 operates to move these dogs to the left, Fig. 5, and each dog is formed with an upwardly projecting arm 178 bearing a latch 179, which is pivoted thereon. Each latch has a shoulder 180 adapted to snap over and lock itself to the cross member 181 of a rocking frame 182 Fig. et, the arms thereof being pivoted at 183, and apair of springs 181 opcrate to move such frame to the left in Fig. 41. A controlling device 185 is provided for each latch, each of these devices having a laterally turned projection 186, which is located beneath its respective latch, and when any one of the controlling devices is actuated to lower its projection 186, the corresponding latch will be permitted to descend and allow its shoulder 180 to engage the cross member 181 of the rocking frame. A spring 187 Fig. 5 is provided to yieldably hold the controlling device in operative and inoperative positions. Ordinarily, however, all

the controlling devices will be set in inoperative condition so that the latches will be supported thereby, and will not engage the cross member of the rocking frame 182, certain of these latches being released when the machine is being operated to simultaneously add a plurality of sets or columns of numerals. A spring 188 acts upon each latch to depressl it, and each latch has a tail 180 which, when the respective dog 17-1 moves forwardly, coperates with the under side of the cross member 100, such latches as have been depressed being thereby raised to release the rocking frame. This rocking frame 182 forms part of a signal for indicating when a carry-over has occurred, it having a sprine supported clapper 191 Fig. 3 fixed thereto, and when the rocking frame is released by the disengagement of the latch or latches, it suddenly returns to initial` position under the influence of its springs 181, the clapper striking and sounding the bell 192. To facilitate cleaning, adjustment or repair of the accumulator, the shaft 131 and the parts thereon, are preferably mounted in a pair of auxiliary plates 198 which are detachably secured to the main side plates.

The operation of the mechanism, is briefly, as follows The entering of the items is accomplished in the same manner as described in the aforesaid application, that is to say, by depressing and rotating the finger-pieces or sectors, and when each finger piece or sector is depressed or rotated, the rack bar 5 which is operatively connected thereto, moves forwardly and into the accumulator carrying the corresponding plate 13 with it, it being understood that the rack teeth 28 of the bar do not engage the respective toothed actuating wheel when the rack bar so enters the accumulator. The forward movement of a rack bar into the accumulator causes its forward end to engage the jack 37, and to rock the jack toward the right in Fig. 5 so as to trip or release it from the detents or triggers which hold it in elevated position, with the result that the jack drops and thereby rotates the bell crank arm 121 to the left in Fig. 4, causing the nose 122 thereon to bear against the surface 112 of the cam 111.

After the finger pieces or sectors have been set according to the item to be printed, the machine is operated, causing forward movementv of the operating bar 25, which latter in turn causes the impression mechanism to operate and print the item. The forward movement of the bar 25 also causes the crank plate 97 to rotate counter-clockwise, Fig. 8, and this crank plate operates through the medium of the plate 105 and its projection 104, and the plate 109 to rotate the main accumulator shaft 101 in a counter-clockwise direction, thereby causing the cam surface 112 of the cam 111 to press against the nose 122 of the bell crank arm 121. Rotation of said cam will rock the bell crank clockwise until the nose 122 thereon reaches the part 113 of the cam, with the result that the bell crank is, thereby, caused to raise the jack 37, and the jack in turn operates to raise the adjacent ends of the rack bars 5 and the associated plates 18. These rack bars, however are not at this time raised sufficiently to cause their rack teeth 28 to engage the toothed actuating wheels 53, although the plates 18 are at this time raised sufficiently to lift their respective latches 100 which then release or unlock their corresponding members 151, permitting the latter to be pulled to the right in Fig. 5 by their respective springs. Such movement of each member 151 causes such member to operate upon and turn its respective accumulator or printing wheel so as to bring its zero type face 57 into printing position, further movement. of such member causing its projection 157 to be pulled out of enga gement with the notch 158 in the accumulator wheel, and this projection is held out of the path of the accumulator wheel until the clearing operation takes place. As these members normally hold the respective accumulator wheels in such position that the Zero type faces thereon are not in printing position, the printing of a total will not cause ciphers to be printed to the left of the left-hand digit of the total, as each accumulator wheel to the left of the lefthand digit remains in normal position. Lifting of the rack bars and their associated plates 13 causes the hooks 29 on said plates to lift the arms 81 carrying the hooks 83, the latter being thereby caused to engage the rear side of the jack and the jack then acts as a lock to prevent such finger pieces as have not been actuated, from being actuated until all the actuated or depressed finger pieces have been restored to initial position. After the accumulator wheels have been rotated to present their zero type faces to the printing position, the further rotation of the cam 111 carries the cam surface 111 into engagement with the nose 122, thereby rocking the bell crank farther in a clockwise direction and causing it to lift the jack higher until it reaches its initial position, the rack bars being then elevated suiiicientlv to engage the rack teeth 28 thereon with the respective actuating wheels 53, and hence when the rack bars and their associated plates are restored to initial position, the accumulator wheels will be rotated in a clockwise direction, Fig.

The carry-overs are produced in the following way: lVhen an accumulator wheel 54 has been rotated to such extent as to cause the type face thereon bearing the numeral 9 to pass the printing position, the projection 59 on the cam 58 strikes the projection 60 on the carry-over pawl G1 for the next accumulator wheel to the left, thereby tilting the pawl about its fulcrum 62 and causing its opposite end to be lowered, and when the projection 170 on this end of the pawl alines with the notch 176 in the corresponding dog 174, the latter moves to the left, Fig. 5, and thereby engages such projection in its notch, the corresponding end of the carry-Over pawl being thus held in depressed position and with its downturned projection 173 in the path of movement of the upper end 149 of the corresponding restoring lever 146% Hence when such lever is rocked toward the right, Fig. 5, by rotation of its respective cam element 145e, the carryover pawl will be pulled toward the right, thereby producing the carry-over. The cam elements 145a which actuate the restoring levers are so adjusted that each revolution of the shaft 134 supporting them will cause the carry-over to take place in succession and from right to left. The shaft 134 which carries the multiple restoring cam receives one complete revolution at each operation fro-m the sector 125 which is fixed to turn with the shaft 101 and through the medium of the gears and controlling devices hereinbefore described.

After the shaft 184 has been rotated once through a complete revolution, the trigger or pawl 115 pivotally mounted on the cam 111 engages the inclined surface of the proj ection 123 on the arm 86, causing movement of the latter toward the right, Fig. 4, and carrying the cross rod 87 into position to reset the dogs 174, whereby the carry-over pawls are released and permitted to return to initial position under the iniiuence of springs 65. After this has been accomplished, continued rotation of the cam 111 will carry the pawl 115 past the projection 123, allowing the bell crank arm 86 and its cross bar 87 to return to normal position. Reverse motion of the operating bar 25 toward initial position returns the cam 111, and the mechanism for turning the shaft 184 to normal position.

Clearing of the accumulator is effected as usual by operating a suitable clearing key, such key causing rotation of the shaft 71 so as to set the clearing comb 66 in operative condition, and also elevating the hook S9 to cause the recess 90 therein to receive the pin 91 on the operating bar 25 and during the forward movement of the bar 25, the shaft 76 is rotated, whereby the shaft 55 is rotated through substantially nine-tenths of a revolution, the comb 66 coperating with the projections 67 to return the accumulator wheels to initial position with their zero type faces at the printing position, after which the bar 25 returns to initial position and restoring the comb 66 to its original position. During the forward movement of the operating bar 25, the link 77 which is pivotally connected to the gear segment 74 moves toward the right, Fig. 4, until its end 78 hooks over the pin 79 on the plate 80, and when the bar 25 `Airns to initial position, the c i dle S1 is roc. l to restore the members l154 to initial position with their projections 157 engaged in the notches 158 of the respective accumulator wheels and as these members are restored, the accumulator wheels will also be returned to their initial positions. The plate S0 acting on the arm S4, also tilts the arm 86 toward the right, F ig. 4, thus insuring` the resetting of the locking dogs 174 and the proper return of all the carry-over pawls to normal position. Elevating of the link 92, which serves to 'aise the hook S9, also serves to lift the plate 105, thereby disengaging the projection 104 from the notch in plate 97 and allowing the latter to rotate fully on its shaft 101.

Should an accumulator wheel which has not been rotated out of its initial position by its member 154, be rotated by its carryover pawl, the projection 157 of the member 154 is forced out of the notch 158 in the wheel and the said member is thereby lowered and released from its latch 169, the member 154 being then pulled toward the right, Fig. 5, by its spring. r1`he spring anttached to the arm 160 tends to raise the pin 161 whereby the projection 157 is normally held in engagement with the notch 15S in its corresponding accumulator wheel.

What is claimed is 1. 1n an accumulator, the combination of a set of accumulator wheels, a set of carryover pawls each capable of tilting and longitudinal movements, a dog for holding each pawl in tilted position an actuating lever arranged to operate upon the respective pawl while in tilted position, and a cam for operating said lever.

2. In an accumulator, the combination of a set of accumulator wheels, a set of carryover pawls each capable of tilting and longitudinal movements, a reciprocatory dog for locking the pawl in tilted position, means for reciprocating the pawl while in tilted position, and means for subsequently disengaging the dog from the pawl.

3. In an accumulator, the combination of a set of accumulator wheels, a set of carryover pawls each capable of reciprocatory movement, a reciprocatory dog coperative with each pawl, a latch carried by each dog, and a signal operative by said latch.

4. In an accumulator, the combination of a set of accumulator wheels, a set of carryover pawls each movable longitudinally, a longitudinally movable dog coperative with each pawl, a pivoted latch carried by each dog, a cross bar adapted to be engaged by said latches, and a signal operative by said cross bar.

5. In an accumulator, the combination of a set of accumulator Wheels, a set of carryover paWls each movable longitudinally, a longitudinally movable dog cooperative With each pawl, a pivoted latch carried by each dog, a cross bar adapted to be engaged by said latches, a signal operative by said cross bar, and devices individual to said latches for holding them in disengaged relation to said cross bar.

6. In an accumulator, the combination of a set of accumulator Whe-els, a set of carryover paWls each movable longitudinally, a longitudinally movable dog coperative With said paWl, for holding the latter in set position, means for reciprocating the pawl to effect the carry-over, and means for restoring said dogs.

7. In an accumulator, the combination of a set of accumulator Wheels, a set of carryover pawls each movable longitudinally, a longitudinally movable dog coperative Wit-h said paWl, for holding the latter in set position, means for reciprocating the pawl to effect the carry-over, a bell crank having a cross member coperative With said dogs, a rotatable member, and a trigger carried by said rotatable member and operative on said bell crank to reset said dogs.

S. In an accumulator, resetting mechanism for the carry-over pawls embodying a shaft, means thereon operative successively upon said carry-over paivls, a reciprocatory gear segment, a ratchet interposed between said segment and shaft for rotating the latter, a locking disk fast on said shaft, and means arranged to engage said disk when said shaft has completed one full revolution, to arrest its rotation.

9. In an accumulator, resetting mechanism for the carry-over paivls embodying a shaft, means thereon operative successively upon said carry-over pawls, a reciprocatory gear segment, a ratchet interposed between said segment and shaft for rotating the latter, a locking disk fast on said shaft and provid-ed With a pair of spaced teeth, a paWl arranged to engage one of said teeth when said shaft has completed one full revolution, to arrest its rotation, and a second paWl arranged to simultaneously engage the other tooth to prevent retro-grade motion of said shaft.

10. In an accumulator, resetting mechanism for the carry-over pawls embodying a shaft, a multiple cam thereon having elements corresponding in number to the carryover paWls and operatively connected thereto, a reciprocatory gear segment, a ratchet between said segment and shaft for rotating the latter, means for automatically arresting rotation of said shaft after it has completed one revolution, and means for preventing retrograde motion of the shaft after such revolution has been completed.

11. In an accumulator, resetting mechanism for the carry-over pawls embodying a shaft, a multiple cam thereon having elements corresponding in number to the carryover paivls and operatively connected thereto, a reciprocatory gear segment, means between the segment and shaft for rotating the latter, a cam operative by said segment., and a pawl controlled by said cam for automatically arresting rotation of said shaft.

1Q. In an accumulator, resetting mechanism for the carry-over pavvls embodying a shaft, a multiple cam thereon having elements corresponding in number to the carryover pau/ls and operatively connected thereto, a reciprocatory gear segment, means operative by said segment for rotating said shaft, means for automatically arresting rotation of such shaft, and a device for normally holding the shaft in initial position.

13. In an accumulator, resetting mechanism for the carry-over pawls embodying a shaft, a multiple cam thereon having elements corresponding in number to the carryover paWls and operatively connected thereto, a reciprocatory gear segment, means operative by said segment for rotating said shaft, means for automatically arresting rotation of such shaft, means for preventing retrograde movement of the shaft, and means for yieldably holding the shaft in normal position.

14. In an accumulator, the combination of a set of accumulator Wheels, a clearing comb therefor, a reciprocatory operating bar, means controlled thereby for setting said comb in clearing condition, means for rotating the Wheels to restore the same to initial position, and a hook having means for setting it to form an operative connection between said bar and the means for rotating the accumulator Wheels.

15. In an accumulator, the combination of accumulator Wheels, clearing mechanism therefor, a hook for operating said clearing mechanism, carry-over mechanism for said Wheels, means for actuating the carry-over mechanism embodying a shaft, a plate capable of being coupled and uncoupled with respect thereto, an operating bar connected to said plate, and a link for operatively connecting said hook to the operating bar and for uncoupling said bar With respect to said plate.

16. In an accumulator, the combination of accumulator Wheels, clearing mechanism therefor, a hook for operating said clearing mechanism, carry-over mechanism for said Wheels, means for actuating the carry-over mechanism embodying a shaft, a plate fixed to said shaft, a shiftable plate connected to turn with the plate first mentioned, a crank plate loosely mounted on said shaft and having a notch to receive the projection on the shiftable plate, an operating bar connected to said crank plate, and a link adjustable to connect said hook to the operating bar and to adjust the shiftable plate to disconnect it from said crank plate.

17. In an accumulator, the combination of accumulator Wheels, clearing mechanism therefor, a hook for operating said clearing mechanism, carry-over mechanism for said ivheels, means for actuating the carry-over mechanism embodying a shaft, restoring means for the carry-over mechanism, a pivoted lever cooperative with said restoring means, and bearing a pin, and a hook operatively connected to the clearing mechanism and arranged to engage and act upon the pin of said lever thereby to actuate the restoring means.

1S. In an accumulator, the combination of accumulator wheels, clearing mechanism therefor embodying a pivoted segment, carry-over mechanism for said wheels, restoring means for the carry-over mechanism embodying a bell crank, a pivoted lever having a cam surface bearing against said bell crank and bearing a pin, and a hook pivotally connected to said segment and operative upon the pin of said lever.

19. In an accumulator, the combination of accumulator ivheels, clearing mechanism therefor, embodying a pivoted segment, carry-over mechanism for said Wheels, restoring means for the carry-over mechanism embodying a bell crank, a pivoted lever having' a cam surface bearing against said bell crank and bearing a pin, and a hook pivotally connected to said segment and operative upon the pin of said lever, devices for setting said Wheels in cipher printing position, and a cradle actuated by said pivoted lever for restoring said devices to initial position.

Q0. In an accumulator, the combination of accumulating wheels, reciprocatory bars for actuating them, a jack for moving said bars into operative relation to said wheels, means releasable by the jack for supporting the latter in elevated position, an operating bar, a rotatable cam operative thereby, and a lever cooperative ivith said cam and operative to restore the jack to elevated position.

21. In an accumulator, the combination of a set of accumulator Wheels, reciprocatory actuating bars therefor, a pivotally mounted and vertically movable jack for controllingthe operative relation betiveen said bars and their respective wheels, triggers for holding the jacks in elevated position, a rotatable cam, and means operative by the cam for elevating the jack after it has been released from said triggers by said bars.

22. In an accumulator, the combination of a set of accumulator Wheels, a set of carry-over pawls each capable of reciprocatory movement, means for holding each pawl in released position, means operative upon each released pavvl to shift it endivise in one direction for effecting the carryover between the Wheels, and means for subsequently shifting the released pawl endvvise. in the opposite direction to return it to normal position.

In an accumulator, the combination of a set of accumulator wheels, a set of carry-over pa\vls each capable of tilting and longitudinal movements, means for tilting each paivl, a dog for holding each pawl in tilted position, and a device operative upon the tilted paul to reciprocate it longitudinally for effecting the carry-m'er between the Wheels.

24. In an accumulator, the combination of a set of accumulator Wheels, a set of longitudinally movable carry-over pawls each provided ivith a projection, and a set of dogs each provided with a projection adapted to engage the projection on the corresponding pa\vl for holding the latter in released position, and means operative upon each released paivl to move the same endivise in one direction to effect the carryover between the wheels.

25. In an accumulator, the combination of a set of accumulator ivheels, a set of longitudinally movable carry-over paivls each capable of tiltable and longitudinal movements, each paivl having a pair of projections upon one end thereof, means for tilting each paivl, a locking member adapted to engage one of the projections ou each tilted paivl, and a member adapted to engage the other projection on the tilted paivl to move the latter endwise in one direction, to effect the carry-over between the Wheels.

2G. In ar calculating machine, the combination of a set of accumulator wheels, a clearing comb operative to restore each ivheel to cipher printing position, and means for subsequently restoring each wheel to non-printing position.

27. In a calculating mechanism, the combination of a set of accumulator Wheels, clearing mechanism therefor, means for operating the clearing mechanism embodying a rock shaft, a lever operative from said shaft, and means operative by said lever for restoring the ivheels to normal position.

28. In a calculating mechanism, the combination of a set of accumulator Wheels, clearing mechanism therefor, means for operating the clearing mechanism embodying a rock shaft, a lever operative from said shaft, a cradle operatively connected to said lever, and means operative by said cradle for restoring the wheels to normal position.

29. In a calculating mechanism, the combination of a set of accumulator wheels, clearing mechanism therefor, means for operating the clearing mechanism embodying a rock shaft, means for rocking said shaft, a member borne by said shaft, means operative by said member for restoring the In testimony whereof I hereunto aiix my wheels to o1pherpr1nt1ng position, and signature 1n the presence of two Witnesses.

means operative by said member for restor- EDVIN L. RELLER. ing the Wheels to non-printing position `Witnesses2 5 after same have been restored to oipher- LOTTIE M. Fox,

printing position. BERTHA voN BEHRENS.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of lPatents, Washington, D. C. 

